public static async Task <string> track_scrobble(MusicProperties id3)
{
long epoch = Globalv.unix_timestamp();
string scrb_track_sig = "album" + id3.Album + "api_key" + Globalv.lfm_api_key + "artist" + id3.Artist + "methodtrack.scrobble" + "sk" + Globalv.session_key + "timestamp" + epoch.ToString() + "track" + id3.Title + "0e6e780c3cfa3faedf0c58d5aa6de92f";
//UTF8Encoding utf8e = new System.Text.UTF8Encoding();
//scrb_track_sig = utf8e.GetString(utf8e.GetBytes(scrb_track_sig));
HashAlgorithmProvider objAlgProv = HashAlgorithmProvider.OpenAlgorithm("MD5");
CryptographicHash objHash = objAlgProv.CreateHash();
IBuffer buffSig = CryptographicBuffer.ConvertStringToBinary(scrb_track_sig, BinaryStringEncoding.Utf8);
objHash.Append(buffSig);
IBuffer buffSighash = objHash.GetValueAndReset();
scrb_track_sig = CryptographicBuffer.EncodeToHexString(buffSighash);
HttpClient cli = new HttpClient();
cli.DefaultRequestHeaders.ExpectContinue = false; //important
string track_scrobble = @"method=track.scrobble×tamp=" + epoch.ToString() + "&track=" + id3.Title + @"&artist=" + id3.Artist + @"&album=" + id3.Album + @"&api_key=" + Globalv.lfm_api_key + @"&api_sig=" + scrb_track_sig + @"&sk=" + Globalv.session_key;
cli.DefaultRequestHeaders.Accept.Add(new System.Net.Http.Headers.MediaTypeWithQualityHeaderValue("application/x-www-form-urlencoded"));
HttpContent tscr = new StringContent(track_scrobble);
tscr.Headers.ContentType = new System.Net.Http.Headers.MediaTypeHeaderValue("application/x-www-form-urlencoded");
var scrobbled_resp = await cli.PostAsync(new Uri("http://ws.audioscrobbler.com/2.0", UriKind.Absolute), tscr);
return(await scrobbled_resp.Content.ReadAsStringAsync());
}
public async static Task <string> Get_user_timeline(string userid)
{
SortedDictionary <string, string> sd = new SortedDictionary <string, string>();
string oauth_nonce = Convert.ToBase64String(System.Text.Encoding.UTF8.GetBytes(DateTime.Now.Ticks.ToString()));
string utc_time = Globalv.unix_timestamp().ToString();
sd.Add("include_rts", "true");
sd.Add("include_entities", "true");
sd.Add("user_id", userid);
sd.Add("count", "20");
sd.Add("oauth_version", "1.0");
sd.Add("oauth_consumer_key", Globalv.ConsumerKey);
sd.Add("oauth_nonce", oauth_nonce);
sd.Add("oauth_signature_method", "HMAC-SHA1");
sd.Add("oauth_timestamp", utc_time);
sd.Add("oauth_token", Globalv.TwitterAccessToken.Token);
string baseString = String.Empty;
baseString += "GET" + "&";
baseString += Uri.EscapeDataString(
"https://api.twitter.com/1/statuses/user_timeline.json?")
+ "&";
foreach (KeyValuePair <string, string> entry in sd)
{
baseString += Uri.EscapeDataString(entry.Key +
"=" + entry.Value + "&");
}
baseString =
baseString.Substring(0, baseString.Length - 3);
//shh... secrets here!
string consumerSecret = Globalv.ConsumerSecret;
string oauth_token_secret = Globalv.TwitterAccessToken.TokenSecret;
string signingKey = Uri.EscapeDataString(consumerSecret) + "&" + Uri.EscapeDataString(oauth_token_secret);
// Create a MacAlgorithmProvider object for the specified algorithm.
MacAlgorithmProvider objMacProv = MacAlgorithmProvider.OpenAlgorithm("HMAC_SHA1");
// Demonstrate how to retrieve the name of the algorithm used.
String strNameUsed = objMacProv.AlgorithmName;
// Create a buffer that contains the the message to be signed.
BinaryStringEncoding encoding = BinaryStringEncoding.Utf8;
IBuffer buffMsg = CryptographicBuffer.ConvertStringToBinary(baseString, encoding);
// Create a key to be signed with the message.
IBuffer keyMaterial = CryptographicBuffer.ConvertStringToBinary(signingKey, BinaryStringEncoding.Utf8);
CryptographicKey hmacKey = objMacProv.CreateKey(keyMaterial);
// Sign the key and message together.
IBuffer buffHMAC = CryptographicEngine.Sign(hmacKey, buffMsg);
// Verify that the HMAC length is correct for the selected algorithm
if (buffHMAC.Length != objMacProv.MacLength)
{
throw new Exception("Error computing digest");
}
string signatureString = CryptographicBuffer.EncodeToBase64String(buffHMAC);
//prepare for sending
HttpClient cli = new HttpClient();
cli.DefaultRequestHeaders.ExpectContinue = false;
cli.DefaultRequestHeaders.ConnectionClose = true;
//auth headers
string authorizationHeaderParams = String.Empty;
//authorizationHeaderParams += "OAuth ";
authorizationHeaderParams += "oauth_nonce=" + "\"" + Uri.EscapeDataString(oauth_nonce) + "\",";
authorizationHeaderParams += "oauth_signature_method=" + "\"" + Uri.EscapeDataString("HMAC-SHA1") + "\",";
authorizationHeaderParams += "oauth_timestamp=" + "\"" + Uri.EscapeDataString(utc_time) + "\",";
authorizationHeaderParams += "oauth_consumer_key=" + "\"" + Uri.EscapeDataString(Globalv.ConsumerKey) + "\",";
authorizationHeaderParams += "oauth_token=" + "\"" + Uri.EscapeDataString(Globalv.TwitterAccessToken.Token) + "\",";
authorizationHeaderParams += "oauth_signature=" + "\"" + Uri.EscapeDataString(signatureString) + "\",";
authorizationHeaderParams += "oauth_version=" + "\"" + Uri.EscapeDataString("1.0") + "\"";
cli.DefaultRequestHeaders.Authorization = new System.Net.Http.Headers.AuthenticationHeaderValue("OAuth", authorizationHeaderParams);
var resp = await cli.GetAsync(new Uri(@"https://api.twitter.com/1/statuses/user_timeline.json?include_entities=true&include_rts=true&user_id=" + userid + "&count=20", UriKind.Absolute));
return(await resp.Content.ReadAsStringAsync());
}
public async static Task <OAuthToken> Rcv_Request_token()
{
SortedDictionary <string, string> sd = new SortedDictionary <string, string>();
string oauth_nonce = Convert.ToBase64String(System.Text.Encoding.UTF8.GetBytes(DateTime.Now.Ticks.ToString()));
string utc_time = Globalv.unix_timestamp().ToString();
sd.Add("oauth_version", "1.0");
sd.Add("oauth_callback", "oob");
sd.Add("oauth_consumer_key", Globalv.ConsumerKey);
sd.Add("oauth_nonce", oauth_nonce);
sd.Add("oauth_signature_method", "HMAC-SHA1");
sd.Add("oauth_timestamp", utc_time);
string baseString = String.Empty;
baseString += "POST" + "&";
baseString += Uri.EscapeDataString(
"https://api.twitter.com/oauth/request_token")
+ "&";
foreach (KeyValuePair <string, string> entry in sd)
{
baseString += Uri.EscapeDataString(entry.Key +
"=" + entry.Value + "&");
}
baseString =
baseString.Substring(0, baseString.Length - 3);
string consumerSecret = Globalv.ConsumerSecret;
string signingKey = Uri.EscapeDataString(consumerSecret) + "&";
// Create a MacAlgorithmProvider object for the specified algorithm.
MacAlgorithmProvider objMacProv = MacAlgorithmProvider.OpenAlgorithm("HMAC_SHA1");
// Demonstrate how to retrieve the name of the algorithm used.
String strNameUsed = objMacProv.AlgorithmName;
// Create a buffer that contains the the message to be signed.
BinaryStringEncoding encoding = BinaryStringEncoding.Utf8;
IBuffer buffMsg = CryptographicBuffer.ConvertStringToBinary(baseString, encoding);
// Create a key to be signed with the message.
IBuffer keyMaterial = CryptographicBuffer.ConvertStringToBinary(signingKey, BinaryStringEncoding.Utf8);
CryptographicKey hmacKey = objMacProv.CreateKey(keyMaterial);
// Sign the key and message together.
IBuffer buffHMAC = CryptographicEngine.Sign(hmacKey, buffMsg);
// Verify that the HMAC length is correct for the selected algorithm
if (buffHMAC.Length != objMacProv.MacLength)
{
throw new Exception("Error computing digest");
}
string signatureString = CryptographicBuffer.EncodeToBase64String(buffHMAC);
//prepare for sending
HttpClient cli = new HttpClient();
cli.DefaultRequestHeaders.ExpectContinue = false;
cli.DefaultRequestHeaders.ConnectionClose = true;
//auth headers
string authorizationHeaderParams = String.Empty;
//authorizationHeaderParams += "OAuth ";
authorizationHeaderParams += "oauth_nonce=" + "\"" + Uri.EscapeDataString(oauth_nonce) + "\",";
authorizationHeaderParams += "oauth_callback=" + "\"" + Uri.EscapeDataString("oob") + "\",";
authorizationHeaderParams += "oauth_signature_method=" + "\"" + Uri.EscapeDataString("HMAC-SHA1") + "\",";
authorizationHeaderParams += "oauth_timestamp=" + "\"" + Uri.EscapeDataString(utc_time) + "\",";
authorizationHeaderParams += "oauth_consumer_key=" + "\"" + Uri.EscapeDataString(Globalv.ConsumerKey) + "\",";
authorizationHeaderParams += "oauth_signature=" + "\"" + Uri.EscapeDataString(signatureString) + "\",";
authorizationHeaderParams += "oauth_version=" + "\"" + Uri.EscapeDataString("1.0") + "\"";
cli.DefaultRequestHeaders.Authorization = new System.Net.Http.Headers.AuthenticationHeaderValue("OAuth", authorizationHeaderParams);
var MuTweetResponse = await cli.PostAsync(new Uri(@"https://api.twitter.com/oauth/request_token", UriKind.Absolute), null);
string resp = await MuTweetResponse.Content.ReadAsStringAsync();
string[] resp_split = resp.Split('&');
string requesttoken = resp_split[0].Substring(12);
string requesttokensecret = resp_split[1].Substring(19);
OAuthToken ret = new OAuthToken();
ret.Token = requesttoken;
ret.TokenSecret = requesttokensecret;
return(ret);
}
